Performance Test and Analysis for Fixed Rings

• Main Authors: Cho,Kun-Hsien, 卓昆賢
• Other Authors: Tseng-Hsing Hsu
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/10838267934764178392

碩士 === 中華大學 === 土木工程學系碩士班 === 100 === With the gradual progress and development of the current construction industry, the building structures and appearances have also been gradually diversified. In this kind of construction environment, improper construction scaffold will leave labors in a situation of insecurity. Therefore, it has become an important issue to figure out how to safely and properly install the construction scaffold in compliance with building appearance in order to enhance the stability and safety of construction scaffold during installation and construction. In light of the diversity of current buildings and the variability of installation of construction scaffolds, the design of system scaffolds has been developed in foreign countries where all components can be assembled into an overall system, unlike the original frame scaffold which cannot be completely installed at an acute angle, polygon, and the convex/concave surface. With all components connected to each other, this scaffold has superior assembly flexibility and high stability such that it has been widely used abroad. Currently there are existing CNS standards of our country for testing single-pipe scaffold and frame scaffold, but there are no regulations or standards related to system scaffold. Therefore, there has been quite a lot of confusion and uncertainty when it is introduced by domestic companies. In terms of relevant regulations in foreign countries, there are regulations and specification requirements related to system scaffold in China. The standards in Japan have been formulated by the Scaffolding and Construction Equipment Association of Japan, In EU and US the standards for single-pipe construction scaffold have also applied to the system scaffold. However, it is not yet determined on which regulation will be implemented or whether or not a new regulation is necessary in Taiwan. Therefore, in this study we have conducted research and analysis related to the safety and component strength of system scaffold. In this study we have conducted strength tests with respect to the components of three kinds of commercially available system scaffolds in accordance with the experiment model formulated by the Institute of Occupational Safety and Health. We have also conducted investigation of strength and damage behaviors based on experimental statistics, and the analysis and evaluation of mechanical behavior based on numerical analysis. The results of experiments and numerical simulation analysis can be used to explore the strength of system scaffold. Then, various parameters such as different hold sizes, wheel style, and number of holds will be simulated to compare the difference among different wheel modules. The results can provide references for the manufacturing of this industry. Keywords: System Scaffolds, Performance Test, Fixed Ring, Numerical Analysis